Patents by Inventor Rolf Viehweger

Rolf Viehweger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for manufacturing methallyl chloride
    Patent number: 4870220
    Abstract: A method for manufacturing methallyl chloride by reacting isobutene with chlorine in the gas phase is disclosed. The reaction is carried out in a distributed nozzle-mixing reactor which enables the reaction to proceed in a stabile manner even without addition of oxygen. At the same time, the yield of methallyl chloride is increased.
    Type: Grant
    Filed: June 15, 1988
    Date of Patent: September 26, 1989
    Assignee: Huels Aktiengesellschaft
    Inventors: Julius Jabrik, Gerhard Sticken, Rolf Viehweger